REPAIR MAINT TO VARIOUS EARTHING LIGHTING CONDUCTORS AND CONNECTED ITEMS AT AF STN SINGARSI UNDER AGE I AF SINGARSI

Amount

M&L in repair for earthing complete with galvanised steel earth plate electrode 600x600x 6mm thick burried in ground (earth pit not less than 2.25 m deep below ground level0with top edge of the plate not less than 1.5 m below normal ground level, connected to GI strip 25x4 mm as earthing lead by means of bolts, nuts, check nuts, and washers of GI or steel, GI strip protected by 40 mm bore medium grade GI pipe and other end connected to earth test point as directed including funnel with watering pipe 20 mm bore light grade GI, wire mesh charcoal or coke common salt laid in altrnative layer of 15 cm (complete thickness) all round the earth electrode, concrete earth pit in PCC(1:3:6) type C-1, 50 mm thick pre-cast RCC(1:2:4) type B-1 normally mix cover slab reinforced with in 8 mm dia TMT bar 10 cm C/C both ways and single handle of 10 mm dia round bar including necessary excavation, earth work etc. in soft/loose/hard soil and disposal of soil to a distance n.exc 50 m and necessry testing on completion all as shown in electrical plate No 3 MES schedule part-I, complete all as specified and as directed.

All as per Item no. 01 but using galvanised iron strip 32x6mm as earthing lead.

All as per Item no. 01 but using galvanised earth lead wire 4.0 mm dia.

All as per Item no. 01 but using copper plate 600x600x3.15mm thick electrode and 20x3mm copper strip earthing lead.

M&L for Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. of galvanised iron strip 25 x 4 mm buried in ground, complete all as specified and as directed.

All as per Item no. 05 but using galvanised iron strip 32 x 6mm buried in ground complete all as specified and as directed

All as per Item no. 05 but using galvanised earth lead wire 4.0 mm dia.

All as per Item no. 05 but using 20x3 mm copper strip.

M&L for aluminium strip 25 x 3.15mm with saddles and fixing screws etc. for roof conductors and down conductors above ground, complete all as specified and as directed.

M&L for test point terminal block made of gun metal or phosphorus bronze size 75x75x25mm drilled and screwed including 3 nos. 8mm dia 25mm long hex. head screw,complete all as specified and as directed.

M&L for air termination, single pointed aluminium rod 12mm dia and 300mm long,complete all as specified and as directed.

M&L for galvanised steel tubes, medium grade of diameter 50 mm, complete all as specified and as directed

M&L for pipe support for all types of pipes including hangars / fastners / elbows/ supports / tees all,complete all as specified and as directed.

M&L for laying of CPVC pipes heavy grade & fittings of size 40 mm,complete all as specified and as directed.

M&L for cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat, one under coat and one finishing coat of paint,complete all as specified and as directed.

M & L for PCC 1:3:6 type C2 using 40mm grade aggregate Cement concrete in surface channels and drains for making good the road/path, fixng of air termination rods etc,complete all as specified and as directed.

Supply and fixing of earth pit display board at each earthing pit, heavy type, 4 mm thick ACP base with 500 mm MS Stand, board shall be printed with following 'Earth Pit No.______', 'Connected to __________', Tested Date : ________', Ohmic Value : ________, Due Date : __________' all, complete all as specifed and as directed by Engr-in-Charge.

Supply, making, printing and fixing of Earthing layout diagram, properly pasted on suitable 2 mm thick PVC board of suitable size with proper fixing arrangements for hanging on the walls with suitable spacers, fastner etc all complete. Rough details of earthing for each E/M installations / bldgs to be printed will be proivded in hand made drawing, which has to made in 2D computer and taken computerised printing and pasted on board all complete all, as specifed and as directed by Engr-in-Charge.

M/S AMARNATH AGARWALLA (BID ID -3330170)

M/S New Builders Corporation (BID ID -3329120)

M/S ASHA ENTERPRISE (BID ID -3329681)

M/S KUMAR AVINASH (BID ID -3329162)

M/S SINGH ENTERPRISE (BID ID -3331083)